Lubbicatob



E. PIQUEREZ.

LUBRICATOR.

APPLICATION FILED AUG.20,1920.

Reissued Dec. 5, 1922. 15,503.

2 SHEETSSHEET 2.

wmmum Z'mjZe Z z'querez Reiasued Dec. 5, 192

EMILE PIQUEREZ, OF S'L-URSANNE, SWITZERLAND, .ASSIGNOR, BY MESNE ASSIGN-MENTS, TO THE BASSICK MANUFACTURING C CORPORATION OF DELAWARE.

MIANY, OF CHICAGO, ILLINOIS, A

LUBBICA'I'OR.

Drlglnal No. 1,276,108, amaau un 2o, 1918, Ser1al in. 222,542, filedMarch is, 1919. mime m reissue filed August 20, 1920. Serial No.504,918.

To all whom it may concern:

Be it known that I, EMILE PI UERnz, a citizen of the Swiss Republic,residing at Fabrique Thekla, St.-Ursanne, Switzerland, have inventedcertain new and useful Improvements in Lubricators, of which thefollowing is'a s ecification.

Lubricators 0 the hand operated force feed ty are known, which have aspecial orifice r charging them, so that in effecting such charging itis not necessary to unscrew the cover com letely from the lubricatorbody. Nevertheless such lubricators are not constructed for containinggrease or a lubricant of semi-solid consistency because up to thepresent, all attempts to construct such lubricators in such a manner asto allow of introducing the lubricant through an orifice provided forthis purpose 1n the cover, have failed owing to the loss of lubricantwhich .counterbalances the advantages of keeping the lubricant clean andof rapidity in charging that are ob tained. f

The object of the present inventor has been to produce a lubricatorprovided with a device which will allow of charging the lubricator witha semi-solid lubricant without loss through a hole provided for thispurpose.

The present invention has now for its object to provide an improvedlubricator of the hand operated force feed type for a semi-solidlubricant, formed with a charging orifice for the introduction of thelubricant, and characterized by the novel feature that it comprisesmounted on a flange arranged concentrically to the charging orifice, acharging device consisting of a hood in which a perforated piston isadapted to work, the-whole being so constructed and arranged that inthecharging operation, the piston is caused to free its orifice orperforation so as to allow the lubricant to pass throu h. I

The manner in whic this invention is to be performed will now be moreparticularly described with reference to the ac companying drawingswhich illustrate by way of example a constructional form of a ubricatoraccording to the present invention.

,pling-melnber with piston contained therein.

F 4 is a rear view of the hood.

Flg. 5 is a sectional elevation, showing the operation of coupling.

& In the example shown, the cover 1 of the lubricator is formed with aflange 2 that is econcentric to the charging orifice 4.

he orifice 4 is normally'closed by a ball 5. 6 is a spring having aconstant tendency to press the ball 5 against its seat so as toclosethe. charging orifice 4.

-A hood 7 formed with a tubular union 8 (which constitutes a supply pipefor admitting lubricant under pressure) is adapted tofit and beconnected to the flange .2.

The connection is effected by means of a coupling member 15 shown inunderside view in Fig. 3. This coupling member has a tongue 9 designedto engage in the annular groove 3 formed between the flange and thecover.

The hood is fitted on to the lubricator by inserting the flange 2through the gap 10. This is accomplished by a movement in the directionof the arrow in Fig. 5, being in a plane parallel with the top ofthelubricator, and perpendicular to the axial direction of flow of thelubricant into the lubricator. The flat top of the cover 1 of thelubricator may be used. to amist in guiding the parts into engagement.

The hood 7 is formed with an interior chamber or cylindrical portion 11in which a piston 12 perforated with an orifice 13 is adapted to work.It will be noted, from an inspection of Figure 2, that the portion ofthe piston 12 in contact with the fiat ceiling surface surrounding thecharging orifice of the lubricator issmaller in area than the inner faceor end of the piston which is subjected to the pressure of thelubricant. Thisconstruction not only permits airpressure to act upon thepiston to push it inwardly when the pressure upon the lubricant isreduced or relieved, but

also causes the pressure upon a unit area 1 of the surfaceof the piston,in contact with the lubricator, to greatly exceed the correspondingressure of the lubricant per 5 unit area. lhe orifice 13 is closed by aplug 14 when the piston 12 is in its outermost position.

The cover 1 is provided with an outwardly expanding spring 17 which isengaged in an annular groove and by bearing against the screw-threadedportion 18 of the lubricator foot 16, revents the cover 1 from beingcomplete y unscrewed from the lubricator.

The charging of the lubricator is efi'ected in the following manner:

The positions of the various parts when at rest are shown in Fig. 1. Thetubular union 8 is adapted to be connected to a syringe filled withlubricant. When the hood 7 has been fixed upon the flange 2, afterhaving unscrewed the cover as far a up as possible, the lubricant isinjected into the charging device under pressure. This pressure causesthe piston 12 to move down and thus uncover its orifice so as to allowthe lubricant-bein charged to pass through and act upon the all 5 whichbeing thereby forced away from its seat allows the lubricant to passthrough the charging orifice and fill the lubricator. The relatlvepositions of the various parts will then be as shown in Fig. 2. When thelubricator is filled, the operator will notice an increase in thereslstance to the charging operation the plunger of the charging syringeis then drawn back and the resulting suction allows the ball 5 to moveback on to its seat, and also causes the piston12 to move up against theplug 14 which thus closes agaln the orifice 13 in the piston. The hood 7can then be removed without the slightest loss of lubricant.

The piston '12 forms a packing which makes a tight joint against the topof the flange 2 of the lubricator. The piston is forced against thisflange by the internal fluid ressure, so that the greater the pressure te tighter the joint. The reaction of this pressure is transmittedthrough the coupling-member 1 5 to the shoulder on the underside of theflange 2. Thus the coupling is held to the lubricator'with a forcepropor-. tional to the fluid "pressure; and upon the release of thepressure the coupling is freed for the easy removal of the hood.

What I claim is e 4. 1. A device for use in filling lubricatorscomprising a cylinder adapted to be attached to the lubricator with itsinterior communiicating with the interior of the lubricator, a supplypipe for the cylinder, a piston movably mounted in the cylinder, apassage for permitting the lubricant to pass by the pistonfiand meansfor normally closing said 65 passage, whereby on lubricant being "Jrcedvwith means for connecting the cy inder to with pressure through thesuppl pipe intosaid cylinder, said piston will be fiirced away from themeans normally closing the passage so as to allow the charged lubricantto pass through the passage and enter the lubricator. 2. device for usein filling lubricators comprising a cylinder adapted to be attached tothe lubricator with its interior communicating with the interior of thelubricator, a supply pipe for the cylinder, a piston movablymounted inthe cylinder and provided with a passage for permitting the lubricant topass the cylinder, and a plug located "in the cylinder for normallyclosing said passage, whereb on semi-solid lubricant being forced witpressure through the supply pipe into the cylinder, said piston will bemoved away from the plug so as to allow the charged lubricant to passthrough the passage in said piston and enter the lubricator. I

3. A device for usein filling lubricators comprising a hood having asupply pipe; a cylinder carried by the hood and rovided the hood, theinterior of the cylinder and the interior of the lubricator being incommunication when the parts are connected, a piston movabl mounted insaid cylinder and provided with a centrally disposed passage, and acentrally disposed plug carried by the hood and normally closing thepassage in the piston.

4. A device for use in filling lubricators comprising a cylindermemberadapted to be detachably connected to the lubricator with itsinterior communicating with the interior of the lubricator, a plugcarried by said cylinder member, a piston located in said cylinder andhaving an aperture normally 95 closed by said plu and a tubular supplymember for the cy inder member extending at right angles to the cylindermember, whereby on lubricant being forced with pressure through thesupply member into said 113 cylinder member, said piston will be forcedaway from said plug so as to allow the charged lubricant to pass throughthe piston, aperture and enter the lubricator.

6. A device for 'usein filling lubricators, 115

comprising a hood having an interior chamber, coupling means forconnecting the hood to the lubricator, an internal packing mov ableunder the pressure of the lubricant in said chamber to seal the jointwith the lubricator and tighten the coupling engagement, and a tubularsupply member for the hood extending at right angles to the direction offlow of the lubricant from said chamher into the lubricator. .125

6. A device for filling lubricators comprising a hood having an interiorchamber and a supply pipe thereto, coupling means on said hood adaptedto engage the lubricator to hold the hood thereto and movable to soengage or disengage the hood in a direction perpendicular to thedirection of flow intothe lubricator, and an internal packing exposed tothe pressure in said chamber and transmitting such pressure to thelubricator to seal the joint therewith and to tighten the couplingengagement.

7 A device for filling a lubricator which has a top opening and alocking shoulder beneath, said device comprising a hood having aninterior chamber, a supply pipe thereto and a coupling member, thelatter having portions engaging under such shoulder by a movement in aplane transverse to the direction of flow of the lubricant into thelubricator, and a movable part responding to fluid pressure in saidchamber and pressing against the lubricator to tighten the couplingengagement.

8. A device for filling a lubricator com- Ezising a hood having acylindrical chamr and a supply pipe thereto, means for coupling it tothe lubricator by an engaging movement at right angles tothe axis ofsaid chamber, and a piston movable under fluid pressure in said chamberand adapted to seal the joint with the lubricator and tighten thecoupling engagement proportionally to the internal pressure.

9. A device for filling a lubricator comprising a hood having aninterior chamber and a supplly pipe thereto, coupling means on said hoofor connecting it to the lubricator consisting of a member having atongue to engage under a flange on the lubricator, such tongue being ina plane parallel to the joint with the lubricator, and engaging thelubricator by a movement transverse thereto, and a movable partresponding to fluid pressure in said chamber and pressing against thelubricator to tighten the cou lin engagement.-

10. A device or lling a lubricator which has a top charging orifice anda flange forming a lockin shoulder, said device comprising a hood iavingan interior chamber and a supply pipe projecting laterally therefrom,coupling means on said hood for connecting it to the lubricatorincluding a tongue entering beneath the flange on the lubricator, and 0en on the same side as the supply pipe, an an internal part movable inresponse to fluid pressure in said chamher and pressing against thelubricator to tighten the joint and coupling proportionally to suchpressure. 7

11; The combination with a lubricator having a top charging orifice andan external flange, and internal means for closing said orifice, of adevice for filling such lubricator comprising a hood having an interiorchamber and a supply pipe thereto, coupling means on the hood forengaging such flange b a movement parallel thereto, and a mova le partresponding to fluid pressure in said chamber and pressing against thelubricator to tighten the cou pling engagement.

12. The combination with a lubricator having a flat top and an inletportion projecting therefrom with a shoulder parallel to said flat top,of a device for filling such lubricator comprising a hood having aninterior chamber and a supply pipe thereto, coupling means on the hoodfor engaging such shoulder, by a movement parallel to said flat top, andhaving a part adapted to engage said flat top to be guided thereby inits coupling movement, and a movable part responding to fluid pressurein said chamber and pressing against the lubricator to tighten thecoupling engagement.

13. A device for filling lubricators comprising a hood having aninterior chamber and a supply pipe thereto, means adapted to attach saidhood to a lubricator, an internal packing movable in response to fluidpressure, having a passage for outflow of lubricant, and means in saidchamber for closing said passage when the packing 1s drawn back undersuction.

14. A device for filling lubricators comprising a hood having aninterior chamber and a supply pipe thereto, means adapted to attach saidhood to a lubricator, an internal packin movable in response to fluidpressure, having a passage for outflow of lubricant and a plu fornormally closing said passage, where y on lubricant being forced intosaid chamber the packing will be moved away from the plug to allow thelubricant to flow into the lubricator.

15. The combination with a lubricator of means for filling saidlubricator comprising a hood, said lubricator and hood having coactingmeans for detachably connecting said hood tosaid lubricator by-amovement of said hood transversely of said lubricator, and meansresponsive to fluid pressure in said hood for locking said hood to saidlubricator and for sealing the connection between said hood andlubricator.

16. The combination-with a lubricator of means for filling saidlubricator comprising .a hood, said lubricator and hood having co-actingmeans for detachably connecting said hood to said lubricator by amovement of said hood transversely of said lubricator, and meansresponsive to fluid pressure in said hood for locking said hood to saidlubricator.

17. A device for filling lubricators, comprising a hood having aninterior chamber for holding lubricant under pressure and a passage foroutflow of lubricant, and

means responsive to the relief of the pressure on the lubricant in saidhood.

18. The combination with a lubricator having a charging orificesurrounded by a sealing surface, of -a device for charging sealingsurface,

said. lubricator comprising means for makhaving a face for contactingwith said seal-.

mg face and a larger face subjected to the pressure of the lubricant insaid device.

19. The combination with a lubrica-tor having a charging orificesurrounded by a of a device for charging said lubricator comprisingmeans for making a detachable connection with said lubricator, and adifferential piston, a portion of the outer face of which contacts withsaid sealing surface, the remaining portion of the outer face beingexposed to air pressure, and the innerface of which is subjected to thepressure of the lubricant in said device. 20. The combination with alubricator having a charging orifice, of means for filling saidlubricator comprising a hollow prising a hollow member member for makinga sealing contact with said lubricator having a greater pressure perunit area than the pressure of said lubricant per unit area.

21. A device for filling a lubricator comfor holding lubricant underpressure, a piston slidable in said hollow member and having one endsubjected to the pressure of the lubricant in said hollow member, theother end of said piston comprising means for making a sealed contactwith the lubricator, and hem smaller in area than said first named en Inwitness whereof, I have hereunto signed my name.

EMILE PIQUEREZ.

